1   /**
2    * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3    *
4    *
5    *
6    *
7    * The contents of this file are subject to the terms of the Liferay Enterprise
8    * Subscription License ("License"). You may not use this file except in
9    * compliance with the License. You can obtain a copy of the License by
10   * contacting Liferay, Inc. See the License for the specific language governing
11   * permissions and limitations under the License, including but not limited to
12   * distribution rights of the Software.
13   *
14   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20   * SOFTWARE.
21   */
22  
23  package com.liferay.portal.kernel.messaging;
24  
25  /**
26   * <a href="InvokerMessageListener.java.html"><b><i>View Source</i></b></a>
27   *
28   * @author Michael C. Han
29   */
30  public class InvokerMessageListener implements MessageListener {
31  
32      public InvokerMessageListener(MessageListener messageListener) {
33          this(
34              messageListener,
35              Thread.currentThread().getContextClassLoader());
36      }
37  
38      public InvokerMessageListener(
39          MessageListener messageListener, ClassLoader classLoader) {
40  
41          _messageListener = messageListener;
42          _classLoader = classLoader;
43      }
44  
45      public boolean equals(Object obj) {
46          InvokerMessageListener messageListenerInvoker =
47              (InvokerMessageListener)obj;
48  
49          return _messageListener.equals(
50              messageListenerInvoker.getMessageListener());
51      }
52  
53      public ClassLoader getClassLoader() {
54          return _classLoader;
55      }
56  
57      public MessageListener getMessageListener() {
58          return _messageListener;
59      }
60  
61      public int hashCode() {
62          return _messageListener.hashCode();
63      }
64  
65      public void receive(Message message) {
66          Thread currentThread = Thread.currentThread();
67  
68          ClassLoader contextClassLoader = currentThread.getContextClassLoader();
69  
70          currentThread.setContextClassLoader(_classLoader);
71  
72          try {
73              _messageListener.receive(message);
74          }
75          finally {
76              currentThread.setContextClassLoader(contextClassLoader);
77          }
78      }
79  
80      private MessageListener _messageListener;
81      private ClassLoader _classLoader;
82  
83  }